Class 10th maths chapter 8 exercise 8.1 Q.10 #ncertsolutions #maths #study

Class 10th maths chapter 8 exercise 8.1 Q.10 #ncertsolutions #maths #study In triangle PQR right angled at Q, PR + QR = 25 cm and PQ =5 cm determine the value of sin p cos p tan pClass 10th Ch-8 Introduction of Trigonometry Exe- 8.1 (Q-9,Q-10) #ncertsolutions #ncert #maths #study In triangle ABC right angled at B if tan A =1\√3 find the values of Sin A cos C + cosA sinC Cos A cos C- sinA sinC In triangle PQR right angled at Q, PR + QR = 25 cm and PQ =5 cm determine the value of sin p cos p tan p    • Class 10th maths chapter 8 exercise 8.1 Q....   10th Ch-8 Introduction of Trigonometry (Q-6,Q-7) #ncertsolutionsClass 10th Ch-8 Introduction of Trigonometry Exe-8.1(Q-3, Q-4, Q-5) #ncertsolutions Q-3 if sin A = 3\ 4 calculate the cost A and tan A #ncertsolutions Q-4Class 10th Chapter -8 Introduction of TrigonometryClass 10th Ch-8 Introduction of Trigonometry Ece-8.1 (Q-8) #ncertsolutions If 3 cotA INTRODUCTION TO TRIGONOMETRY 121 EXERCISE 8.1 1. In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine : (i) sin A, cos A (ii) sin C, cos C 2. In Fig. 8.13, find tan P – cot R. 3. If sin A = 3 /4 calculate cos A and tan A. 4. Given 15 cot A = 8, find sin A and sec A. 5. Given sec A = 13/,12 calculate all other trigonometric ratios. 6. If angle A and angle B are acute angles such that cos A = cos B, then show that angle A = angle B. 7. If cot A = 7/ 8 evaluate : (i) (1+ sin A)(1 sin A)/ (1+ cosA )(1 cosA ) (ii) cot²A 8. If 3 cot A = 4, check whether = 1- tan² A/1 + tan² A = cos² A – sin² A or not. 9. In triangle ABC, right-angled at B, if tan A = 1 /3 find the value of: (i) sin A cos C + cos A sin C (ii) cos A cos C – sin A sin C 10. In ∆ PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P. 11. State whether the following are true or false. Justify your answer. (i) The value of tan A is always less than 1. (ii) sec A = 12/5 for some value of angle A. (iii) cos A is the abbreviation used for the cosecant of angle A. (iv) cot A is the product of cot and A. (v) sin A= 4/3 for some angle A.